Heating apparatus



No. 749,244; A PATENTED JAN. 12, 1904. f

E. M. WARREN.

HEATING APPARATUS.

APPLICATION FILED MAR. 9, 1903.

H0 MODEL.

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um, '1. mm D c UNITED STATES Patented aanuary 19, 1904.

PATENT OFFICE.

EDDIE M. WARREN, OF NASHVILLE, TENNESSEE, ASSIGNOR OF ONE-HALF TO ARTEMUS E. BRADLEY, OF NASHVILLE, TENNESSEE.

HEATING APPARATUS- SPEGIFICATION forming part of Letters Patent No. 749,244, dated January 12, 1904.

Application filed Ma 9, 1903.

T0 (LZZ whom, it may concern.-

Be it known that I, EDDIE M. WARREN, a citizen of the United States, residing at Nashville, in the county of Davidson and State of Tennessee, have. invented certain new and useful Improvements in Heating Apparatus; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to heating apparatus,

and particularly to an apparatus designed for fermenting yeast, raising bread, and other analogous uses.

The object of the inventionis to provide a device of this character which is simple of construction, efiicient in use, and comparatively inexpensive of production, and-which may be employed for a variety of domestic purposes wherein the article or substance to be treated is to be subjected to heat.

With this and other objects in view the invention consists in certain novel features of construction, combination, and arrangement of parts, as will be hereinafter fully described, and particularly defined in theappended claims.

In the accompanying drawings, Figure 1 is a front perspective view of a heater embodying my invention. Fig. 2 is a rear perspective view thereof, and Fig. 3 is a central vertical front-to-rear section. Fig. 4 is a detail fragmentary horizontal section on line 4: 1 of Fig. 3, showing in plan view the bottom of the alcoved compartment.

In carrying my invention into practice I provide a box or casing I 1, preferably constructed of a bottom 2, sides 3, and a domeshaped top 4, but which may be of any desired form and construction to suit the purpose. The bottom of the casing may rest directly upon the floor orv a support or may be provided with supporting-legs 5. Within the casing are one or more perforated shelves 6, resting on ledges 7. These shelves are adapted, to support the pans or vessels containing the yeast, dough, or other material to be treated, the perforations therein allowing the currents of heated air to freely circulate. The casing is closed in front by a door 9, preferably perthe perforated shelf.

Serial No. 146,990. (No model.)

manently connected thereto by hinges 10 and adapted to be closed by a suitable fastening 11. In this door is an observation-opening closed by a glass panel 13, and upon the inner side of the door is arranged a thermometer -14, which maybe observed from the exterior through the panel to allow the temperature of the interior of the casing to be readily determined at any time. The back of the casing is similarly closed by a door 15, which is preferably connected thereto by removable or separable hinges 16 and is designed to be held closed by a suitable form of fastening 17. This door is of such form as to provide an alcove or compartment 18 for the reception of a suitable heater 19, which may be a lamp, a gas or gasolene burner, an electric heating device, or any other suitable form ofheater. In the present instance I have shown the application of an ordinary kerosene-lamp, which is held in position upon the base of the door by a metallic rim or socket 20. In the top of the door an opening 21 is formed for the reception of the upper end of the chimney of the lamp to allow the fumes to escape. An annular row of openings 22 in the bottom of the door permit, of the free inlet of air for ventilation. Where a gas or gasolene burner is used in place of the lamp, the bottom of the door is provided with a central opening 23 for passage of the pipe leading from the source of gas or gasolene supply. The outer side of the door is provided with a handle or hanger 24:, formed with an opening 25, by means of which the heater may be suspended when not in use from a nail, or any other suitable support. For convenience in transporting the device from place to place the sides 3 of the box 1 may be provided with suitable handles 26.

In using the heater for raising yeast or bread the material contained within. a pan or vessel is placed within the box and rested upon The lamp or heater is set in operation and the doors are then closed to prevent inlet of the outer cold air, except through the ventilation-openings. The interior of the box will then become heated and cause fermentation of the yeast in the well The temperature of the interior known way.

of the box may be readily ascertained at any time by consulting the thermometer through the observation-opening in the front door, and the temperature may be regulated by opening either door or by opening the rear door and turning down the lamp.

As stated, the device provides aconvenient article for domestic use in raising bread and yeast, and it may also be employed for heating milk preparatory to churning. By using a gas, gasolene, or electric heater in place of the lamp the device may be also used for cooking or baking purposes, and thus is adapted for a variety of domestic purposes where the subject to be treated is to be subjected to heat.

It is contemplated in practice to make the apparatus of sheet metal; but it may be made of any material suitable for the purpose.

From the foregoing description, taken in connection with the accompanying drawings, the construction, mode of operation, and advantages of the invention will be readily apparent, it is thought, without requiring a more extended explanation.

Various changes in the form, proportion, and the minor details of construction-may be resorted to without departing from the principle or sacrificing any of the advantages of the invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A heating apparatus of the character described, comprising a box or chamber having an alcoved door forming a compartment in open communication with said box or chamber,

for the reception of a heating device, substantially as described.

2. A heating apparatus of the character described, comprising a casing provided with a chamber for material to be treated and with front and rear hinged doors, one of said doors being alcoved to form a supplemental chamber for a heater, said supplemental chamber being in open communication with the heating-chamber, substantially as described.

3. A heating apparatus of the character described, comprising a casing provided with a heating-chamber and an alcoved door, said door being provided in its top and bottom portions with ventilation-openings, and forming a supplemental chamber, in communication with the heating-chamber for the reception of a heater.

4. A heating apparatus of the character described, comprising a casing forming a heating-chamber and having a removable door, said door comprising divergent sides, a bottom, an outer end wall and an inclined top, the same forming a supplemental compartment for the reception of a heater, said compartment being in open communication with the heating-chamber, and the top and bottom walls of the door being provided with draft-openings, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing Witnesses.

EDDIE M. WARREN. Witnesses H. G. GREEN, J. L. PEARCY, Jr. 

